package com.itheima.service.impl;

import com.itheima.dao.BookDao;
import com.itheima.service.BookService;

public class BookServiceImpl implements BookService {
    //5.删除业务层中使用new的方法创建的dao对象

    private BookDao bookDao ;

    public void save(){
        System.out.println("book service save.....");
        bookDao.save();
    }

    //6.提供对应的set方法
    public void setBookDao(BookDao bookDao) {
        this.bookDao = bookDao;
    }
}
